LRA 216-2

4. Primary barriers are located _____ to the line of travel of primary X-Ray beam.
5. _________ are secondary barriers.
7. The intensity of radiation at a given distance from a point source is inversely proportional to the square of the distance.
9. To reduce _________ radiation from patient radiographer should position themselves at right angles to the patient, and stand at least 6 feet from X-Ray source.
11. ________ may be necessary if there is voluntary motion.
12. Exposure rate for _________ must be less than 10 mrem/wk.
14. Under no circumstances should a ________ female be used to support or hold a during an exposure.
16. Secondary barriers are _____ to line of travel of primary X-Ray beam.
19. _________ cord minimum length is 6 feet.
21. Fluoroscopic exposure switch is a _________ type.
22. Protective barrier that covers areas exposed to scatter and leakage radiation and are1/32 lead or equivalent

1. Protective barrier that should consist of 1/16 inch lead or equivalent and must be at least 7 feet tall.
2. Exposure rate for a _________ must be less than 100 mrem/week.
3. The more X-Rays performed, the the thicker the barrier needed.
6. The percentage of time the X-Ray Beam is used and directed toward a particular wall.
8. This material is often used for shielding due to its high atomic number.
10. Barrier __________ depends on distance between radiation source and barrier.
13. Stand at a safe _______ from the machine and patient to minimize exposure dose.
15. _________ must be located in the control booth.
17. Abbreviation for Half value layer
18. cardinal rule to minimize how long an exposure is
20. Utilize ________ between the energized X-Ray tube and the exposed person.